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What is meant by a “pulse-chase”experiment? What procedures were followed? What were thecells labeled with? In what cell compartment was the labelfound? The first labeled mitotic cells were observedabout 4-5 hours after the end of the labeling period. Mitoticcells continued to appear over the next 6-8 hours. These dataled researchers to conclude that S phase lasts about 6-8 hours, and G2 lasts about 4 hours. Explain their reasoning.
What does the most recent Helsinki Declaration include that is not included in the Nuremberg Code?
When chromatin from any eukaryote is digested with micrococcal nuclease and fractionated using electrophoresis, DNA fragments of approximately two hundred base pairs in length are observed.
Tumor Viruses and our Current Understanding of Cancer and How many cancers are caused by viruses?
Which of the following represents two things that are identical - the sequences of DNA in two sister chromatids before meiosis
A repeating polymer with the sequence 5'- GUAGUAGUAGUA...-3' was found to produce only two types of polypeptides in a translation system that uses cellular componants but not living cells. Onle polypeptide consisted of repeating Val and the other ..
A wild-type fruit fly (heterozygous for gray body and normal wings) is mated with a black fly with vestigial wings. The offspring have the following phenotypic distribution? 778 wild type, 785 black-vestigial, 158 black-normal, 162 gray-vestigial...
how to keeping the shape of the cell. But I have found that there is a primary and secondary cell wall - each has their own function - so I am somewhat confused and looking for guidance.
provide a possible explaination for the enhanced production of dystrophin in the presence of exon 45 and 46 deletions.
Why are mutation and recombination important in the process of natural selection and the evolution of organisms?
Calculate the avrg. size of the cork cells, in mm, if there are 6 cells across the field of view and the objective lens used was 40x.
In horses, black coat colour is dominant over chestnut. In gait, trotting is dominant over pacing. If a mare with a genotype of bbTt is bred to a stallion with a genotype of BbTt, what are the chances of a chestnut, pacer foal.
Determine which of the following statements is true regarding the flow of energy from the sun to stored chemical energy?
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